Hatch way-guard



(No Model.)

H. BUSG-HMAN. Hatchway Guard.

No. 240,229. Patented April I9, 1881'.

6 ,215 v4 CAM. a. Z

N.PEIERS, PHOTO-UTHOGRAPNER. WASHINGTON D. Q

UNITED STATES PATENT OFFICE.

VICTOR H. BUSOHMAN, on BALTIMORE, MARYLAND.

HATCHWAY-GUARD.

SPECIFICATION forming part of Letters Patent No. 240,229, dated April 19, 1881.

To all whom it may concern Be it known that I, VIc'ron H. BUscnMAN, a citizen of the United States, residing at Baltimore, in the county of Baltimore and State of Maryland, have invented certain new and useful Improvements in Hatchway-Guards; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to letters or figures of reference marked thereon, which form a part of this specification.

The object of my invention is to provide a hatchway guard or protector and mechanism for moving the same which shall be actuated by the elevator-car as it passes up or down, as hereinafter set forth.

In the drawings hereto annexed, Figure l is a front view of an elevator, showing the car and hatchway-guard in acertain position. Fig. 2 shows the same, but with the car and guard in a difi'erent position. Fig. 3 is a horizontal section, showing the position 'of the guard with relation to the hatchway. Fig. 4 shows a modification in the form of the guard. Fig. 5 is a View of the guard-actuating device on the car on a large scale.

The letters A A designate two floors of a warehouse; B, the guide-posts on which the elevator-car travels, and O the car. The upright bars 0 of the car, which slide between the guide-posts, are connected by a cross-beam, d, by which the car is suspended. Two pulleys, cf, ofsuitable size, are mounted on the guide-posts, or at one side of the posts, at a proper height above the floor to turn in unison and in a vertical plane, and a pulley, g, is mounted far enough in front of said pulleys to clear the hatchway, and at the same height of the pulleys, but to turn in a horizontal plane, and a fourth pulley, h, is suspended at the same height at the front side of the hatchway.

The relative position of the three pulleys fg h,

when viewed in a horizontal plane, is that of a right-angled triangle. Upon the guide-post, below the pulleys ef, are two pulleys, i and t", one immediately above the other, and a staple, k, is secured to the guide-post a short distance above these pulleys, and a staple, k, is secured (No model.)

at the same distance below them. These staples serve as guides, through which the bar L slides up and down. The central part of the bar has two curves, a and a, both curving to the same side, and between the two curves the bar forms a somewhat angular point, having a'shoulder,p, as shown in Figs. 1 and 2. Upon the bar being raised or lowered the curved part will, on passing through the staple, give a lateral or sidewise movement to the bar, thereby disengaging it from the actuating device attached to the car, and hereinafter referred to.

The hatehway-guard consists of a movable gate, T, of any suitable material or construction, and of a size to extend across the front side of the hatchway, so as to shut off access thereto. This gate may slide up and down vertically by being suitably connected at each end to a rod, J, at each side of the hatchway,

whiclr extends from the floor to the ceiling the smaller one of the two which turn in unison. A rope, s, is made fast by one end to the pulley f, and pass'es partly around the pulley g, which turns in a horizontal plane, and thence passes over the pulley h, which is suspended at the front side of the hatchway, and thence down, and is attached to the guard T.

One of the. upright bars, 0, of the elevatorcar is provided with two devices, G and H, for actuating the vertically-sliding bar-L. This device consists of two short bars, it, placed in a horizontal position, each having one end pivoted at t, and the free end of each connected with the other by means of a vertical bar, to, pivoted to the free ends. This construction requires both bars tto swing up and down in unison. Below the uppermost device, G, a stop-pin, V, is fixed to sustain the bars t in a horizontal position. While this device is pret from swinging up beyond a horizontal position, and to this device a spring, .12, is aflixcd in such manner as to sustain the bars t normally up against the stop pin V; but said spring will yield to any downward pressure on the free end of the bars 15. It will be seen these devices are in such position on the upright bar a on the car that when the car moves they will come in contact with the shoulder 19 on the sliding barL, either above or below it, according to the direction the car may be moving. If the car is being raised the upper device, G, will slide the bar up, thereby drawing on the rope T, which turns the pulleys ef and draws the rope 5, resulting in the elevation of the gate or guard, and upon the device G passing the shoulder of the sliding bar, after the latter has moved sidewise, the gate will lower by its own gravity. When the lower device, H, on the upward passage of the car comes in contact with the bar it yields and swings downward. If the car is being lowered the lower device, H, will slide the bar down, resulting in the elevation of the gate.

The vertical bar u, connecting the swinging ends of the two bars t, serves an important purpose, namely, it keeps the sliding bar L pressed to one side during the time it is sliding along and against the shoulderp, and so long as the bar L is thus kept to one side the hatchwaygate will remain up. The length of the bar u, therefore, determines the space over which the car may pass while the gate is open. Both the bar and gate may be independently coun terbalanced, to preventeither from dropping too hard.

By the foregoing description it will be seen that the guard at the hatchway on each floor is elevated to permit access to the elevator-car when the latter is at the floor or is passing the floor; but said guard is down and shuts off access to the hatchway when the elevator-car is above or below the floor.

Having described my invention, I claim and desire to secure by Letters Patent of the United St'ates 1. In an elevator hatchway-guard, a vertically-slidin g bar, L, having on one side a projectin g shoulder, 19, and shaped to form a curve in a direction from the shoulder, in combination with guides for the bar secured to the elevator guide-post, as set forth.

2. In an elevator hatchway-guard, a device attached to the elevator-oar, foractuating mechanism which is adapted to raise and lower the hatchway-guard, consisting of two horizontal bars, t, each pivoted by one end to the carframe, and having their free ends projected toward the guide-post, and the two bars connected together by a vertical bar, a, and a stoppin, V, fixed to the car-frame, and in such position that the free end of the bars may rest against the pin and be restricted from moving in one direction beyond the horizontal position, as set forth.

3. The combination, substantially as set forth, of a bar to slide vertically in guides on the guide-post, and having on the side next to the car a projecting shoulder, and shaped substantiall y as described, so that a vertical movement in the guides will carry the bar sidewise, a hatchway-guard adapted to be raised or lowered, ropes arranged in connection with pulleys, substantially as described, to connect the vertically-sliding bar, and a device attached to the car, which will move but one way from a horizontal position, to engage with the shoulder on the bar.

4. In an elevator hatchway-guard, the combination, substantially as set forth, of a bar to slide vertically in guides onthe guide-posts, two pulleys close together, one immediately above the other, and a rope attached to the vertically-sliding bar and passed between the two pulleys, and connected, substantially as described, with the hatch way-guard.

In testimony whereof I affix my signature in presence of two witnesses.

VICTOR H. BUSOHMAN.

Witnesses:

OHAs. B. MANN, J N0. T. MADDOX. 

